參數(shù)資料
型號(hào)： MAX8543
廠商： Maxim Integrated Products, Inc.
英文描述： Dual J-K Negative-Edge-Triggered Flip-Flops With Clear And Preset 16-CDIP -55 to 125
中文描述： 降壓型控制器，具有預(yù)偏置啟動(dòng)、無(wú)損檢測(cè)、同步整流和OVP
文件頁(yè)數(shù)： 2/27頁(yè)
文件大小： 399K
代理商： MAX8543
M
S tep-Down Controllers with Prebias S tartup,
Lossless S ensing, S ync hronization, and OV P
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN, EN, CS+, CS- to GND.......................................-0.3V to +14V
BST, DH to LX ..........................................................-0.3V to +6V
BST to GND............................................................-0.3V to +20V
DL, COMP, ILIM2, SS, SYNCO,
FSYNC to GND .......................................-0.3V to (V
VL
+ 0.3V)
VL, FB, POK, ILIM1, ILIM, MODE to GND................-0.3V to +6V
PGND to GND .......................................................-0.3V to +0.3V
ELECTRICAL CHARACTERISTICS
(V
IN
= 13.2V, V
BST
- V
LX
= 5V,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Operating Input Voltage Range
VL connected to IN for V
IN
< 5.5V
Quiescent Supply Current
V
FB
= 0.9V, no switching
EN = GND, MODE = GND, IN not connected to VL
Shutdown Supply Current
EN = GND, VL = IN, MODE = GND
VL Undervoltage-Lockout Trip Level
V
VL
rising, typical hysteresis is 80mV
Output Voltage Adjust Range (V
OUT
)
(Note 1)
VL Output Voltage
5.5V < V
IN
< 13.2V, 1mA < I
VL
< 75mA
VL Output Current
VOLTAGE REFERENCE
SS Shutdown Resistance
From SS to GND, V
EN
= 0V
SS Soft-Start Current
V
REF
= 0.625V
Soft-Start Ramp Time
Output from 0% to 100%, C
REF
= 0.01μF to 1μF
ERROR AMPLIFIER
FB Regulation Voltage
Transconductance
COMP Shutdown Resistance
From COMP to GND, V
EN
= 0V
FB Input Leakage Current
V
FB
= 0.9V
FB Input Common-Mode Range
CURRENT-SENSE AMPLIFIER
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70
°
C)
16-Pin QSOP (derate 8.3mW/°C above +70°C) .......666.7mW
20-Pin QSOP (derate 9.1mW/°C above +70°C) .......727.3mW
Operating Temperature Range ...........................-40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
CONDITIONS
MIN
3.0
TYP
2
2.7
5
MAX
13.2
3
10
20
2.88
5.5
75
UNITS
V
mA
μA
2.52
0.8
4.5
V
V
V
mA
20
24
33
100
34
μA
14
ms/μF
0.792
70
-0.1
0.8
110
20
5
0.808
160
100
100
+0.9
V
μS
nA
V
V
ILIM1
= 0V
V
ILIM1
= (1/3)V
VL
V
ILIM1
= (2/3)V
VL
V
ILIM1
= V
VL
8.8
4.8
3.2
2.4
11
6
4
3
13.2
7.2
4.8
3.6
Voltage Gain
V
OUT
= 0 to 13V
V / V
CURRENT LIMIT
ILIM2 Output Current (MAX8544 Only)
ILIM1 Input Current
R
ILIM2
= 50k
to 200k
V
ILIM1
= 0V or V
VL
4.5
-1
5
5.5
+1
μA
μA
相關(guān)PDF資料
PDF描述
MAX8544 Dual J-K Negative-Edge-Triggered Flip-Flops With Clear And Preset 20-LCCC -55 to 125
MAX8546EUB PLASTIC ENCAPSULATED DEVICES
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8543EEE 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX8543EEE+ 功能描述:電流型 PWM 控制器 Step-Down Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX8543EEE+T 功能描述:電流型 PWM 控制器 Step-Down Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX8543EEE-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX8544EEP 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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